Skip to content

Compare the Knob-tipped Knife With the Needle Knife in Difficult Biliary Cannulation

The Efficacy and Safety of Precut Papillotomy Using the Knob-tipped Knife and Needle Knife in Difficult Biliary Cannulation: a Randomized-controlled Trial.

Status
UNKNOWN
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01745978
Enrollment
50
Registered
2012-12-10
Start date
2012-12-31
Completion date
2014-12-31
Last updated
2012-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bile Duct Diseases, Endoscopic Retrograde Cholangiopancreatography

Brief summary

The aim of the present study was to compare the efficacy and safety of the knob-tipped knife and needle knife for precut papillotomy in difficult common bile duct (CBD)cannulation.

Detailed description

Precut sphincterotomy is an alternative technique used to facilitate CBD cannulation following the failure of conventional bile duct cannulation. Needle knife papillotomy is the most widely practiced precut technique. However,Pre-cutting the papilla with a needle-knife is difficult, requiring experience and dexterity to control the axis and depth of the cut. Due to the increased rate of complications associated with this procedure, including pancreatitis, hemorrhage, and perforation, it was recommended to be performed only by experienced endoscopists. The knob-tipped knife, a novel instrument utilizing a 2mm or 1.5mm cutting knife, is usually used for endoscopic submucosal dissection (ESD). Its knob-shaped tip and nonadjustable length make the knife less likely to slip and penetrate the tissue during the resection. Since the process of precut papillotomy is similar to ESD, the precutting procedure with the knob-tipped knife may be easier to be performed, as well as be safer. The efficacy and safety of this instrument in precut papillotomy have not been reported. We therefore assessed the efficacy and safety of the knob-tipped knife in precut papillotomy in difficult CBD cannulation.

Interventions

PROCEDUREPrecut papillotomy

Sponsors

Changhai Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* intact papilla and deep cannulation of the bile duct * a standard wire-guided cannulation \>10 minutes, OR Pancreatic contrast injections ≥3, OR Pancreatic deep wire pass ≥5

Exclusion criteria

* ampullary tumors * Billroth II or Roux-en-Y anatomy * prior endoscopic sphincterotomy(EST) or biliary stent * choledochoduodenal fistulae

Design outcomes

Primary

MeasureTime frame
Successful biliary cannulation rate after precut papillotomyDuring endoscopic retrograde cholangiopancreatography (ERCP) procedure

Secondary

MeasureTime frame
Biliary cannulation time after precut papillotomyFrom precut papillotomy started to biliary cannulation achieved or abandoned

Other

MeasureTime frame
The incidence of Early complications of endoscopic retrograde cholangiopancreatography(ERCP) including pancreatitis, hemorrhage, and perforation7 days after ERCP

Countries

China

Contacts

Primary Contactzhaoshen Li, MD
zhaoshenlismmu@gmail.com86-21-81873241
Backup Contactfeng Liu, MD
drliuffeng@hotmail.com86-21-81873262

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026